Zobrazeno 1 - 10
of 499
pro vyhledávání: '"gas desorption"'
Publikováno v:
Meitan kexue jishu, Vol 52, Iss 7, Pp 101-113 (2024)
With the deepening of mine development level, the coal rock storage environment shows high gas pressure and high ground temperature characteristics, and temperature and pressure are important factors affecting the adsorption-desorption-oxidation char
Externí odkaz:
https://doaj.org/article/be4ed929e07b416f9f04c54d2e8ba6e9
Publikováno v:
Journal of Cardiothoracic Surgery, Vol 19, Iss 1, Pp 1-4 (2024)
Abstract Background Extracorporeal membrane oxygenation (ECMO) is increasingly being used for critically ill patients with cardiopulmonary failure. Air in the ECMO circuit is an emergency, a rare but fatal complication. Case presentation We introduce
Externí odkaz:
https://doaj.org/article/1478d90f289a4475bbfd2a0cec8c9773
Publikováno v:
Meikuang Anquan, Vol 55, Iss 5, Pp 61-67 (2024)
The change of external environmental pressure is one of the main factors affecting the gas desorption pattern of coal samples. In order to study the difference of gas desorption under atmospheric pressure and step-down pressure, we conducted the expe
Externí odkaz:
https://doaj.org/article/efcc52b2ec224263ba81bf4ffcfda49b
Autor:
JIA Nan
Publikováno v:
Gong-kuang zidonghua, Vol 50, Iss 3, Pp 122-130 (2024)
Fully understanding the mechanism of coal seam gas migration is the fundamental prerequisite for improving extraction efficiency. At present, research on the micro migration features of coal gas mostly focuses on the micro pore gas migration features
Externí odkaz:
https://doaj.org/article/80e2d47114404cf88bb24450679618a2
Publikováno v:
Heliyon, Vol 10, Iss 10, Pp e30800- (2024)
The coal's particle size distribution properties after pulverization and the gas desorption behavior driven by pulverization are of profound meaning to the study of coal and gas outburst mechanism. In this paper, based on the impact crushing experime
Externí odkaz:
https://doaj.org/article/5eb5a02c97af4ebcb98264fd8ddcc4c1
Publikováno v:
Geomechanics and Geophysics for Geo-Energy and Geo-Resources, Vol 9, Iss 1, Pp 1-28 (2023)
Abstract Coalbed methane production failures through hydraulic fracturing in the Linxing gas field in China have encountered significant setbacks, hindering efforts to enhance the recovery of deep CBM reserves in the region. To address this challenge
Externí odkaz:
https://doaj.org/article/cde5cca7fcd6431da7ca3f3220ecef4d
Publikováno v:
Meitan kexue jishu, Vol 51, Iss 9, Pp 112-120 (2023)
It is easy to form a coupling effect between ground stress and gas, and cause the accident of coal and gas outburst dominated by ground stress during deep mining. In order to improve the accuracy of mine gas disaster prevention, it is urgent to deepl
Externí odkaz:
https://doaj.org/article/44638a36a53849b793e08eaa812cd60f
Publikováno v:
Energy Science & Engineering, Vol 11, Iss 9, Pp 3185-3203 (2023)
Abstract Pore difference characteristics and adsorption/desorption experiments of primary coal with different degrees were explored to study the characteristics of pore structure and gas desorption. The results show that the pore volume increases wit
Externí odkaz:
https://doaj.org/article/1dde5bd25f7a4369ad50c96da9897886
Publikováno v:
Gong-kuang zidonghua, Vol 49, Iss 8, Pp 142-147 (2023)
Currently, research on the dynamic features of gas desorption mainly focuses on single particle size coal samples. There is less research on the dynamic features of gas desorption of mixed coal samples with different particle sizes. To solve this pro
Externí odkaz:
https://doaj.org/article/d2952ec16c0c4369a2e254d9648bc66b
Publikováno v:
Meitan xuebao, Vol 48, Iss 8, Pp 3091-3101 (2023)
In order to reveal the effect of changes in coal microstructure on gas desorption, this study selected coal samples from the Eighth Mine in Pingdingshan, Henan Province as the research object, and used two surfactants, 1-Butyl-3-methylimidazolium tet
Externí odkaz:
https://doaj.org/article/ec7ecae210cd49bcb57bfb8f0aa08867